Stylographic writing pen with barrel nib reinforcment cover

ABSTRACT

A STYLOGRAPHIC WRITING PEN, WHEREBY A REINFORCED BARREL NIB JACKET ACTS AS THE PEN STYLUS IN THE CAPILLARY PASSAGE OF WHICH STYLUS A CLEANING STEM IS RECIPROCABLY MOVABLE.

' Jan. 26, 1971 BQK 3,558,235

I STYLOGRAPHIC WRITING PEN WITH BARREL NIB REINFORCEMENT COVER FiledFeb. 13, 1969 INVENTOR V v 50549,? I

US. Cl. 401-458 2 Claims ABSTRACT OF THE DISCLOSURE A stylographicwriting pen, whereby a reinforced barrel nib jacket acts as the penstylus in the capillary passage of which Stylus a cleaning stem isreciprocably movable.

FIELD OF THE INVENTION This invention is such as to encompass allstylographic pens, be they for drafting or scribing.

SUMMARY OF THE INVENTION According to the present invention, the writingpen comprises a barrel with barrel nib, the bottom of which is providedwith a cover, the cover being a deep stress product which is made ofsheet metal. The bottom of this cover acts as the pen stylus, per se.Through the capillary passage of said stylus, the cleaning wire of thepen is reciprocably movable, to clean it.

BRIEF DESCRIPTION OF THE DRAWIINGS FIG. 1 is a view in side elevation ofthe stylographic writing pen according to the invention;

FIG. 2 is an enlarged fragmentary vertical section view of the penaccording to FIG. 1;

FIG. 3 is an enlarged fragmentary vertical sectional view of a pen nibof the pen taken along lines 33 of FIG. 2;

FIG. 4 is an enlarged transverse sectional view of the basicconstruction writing pen taken along section lines 4-4 of FIG. 2;

FIG. 5 is an enlarged fragmentary bottom view of the stylographicwriting pen according to FIGS. 1-3; and

FIG. 6 is an enlarged fragmentary view of a modified bottom part of thestylographic writing pen according to FIGS. 1-3.

DESCRIPTION OF THE PREFERRED EMBODIMENTS In 'FIG. 1 the stylographicwriting pen 10 is shown with barrel 12. The writing nib 14 of the pen isprovided with the reinforced bottom 16, which is also shown in FIGS. 2,3 and 4. Reference FIG. 2, the lower side wall 20 of the writing nib 14is oflfset recessed and in recess 18, the cover 16 is set, which duringassembly is attached to the writing nib 14 by means of glue or cement.

In another embodiment, the cover 16 is provided with an inward directedrim 21 as indicated by phantom lines,

United States Patent 0 ice enabling the cover 16 to be connected to thewriting nib 14 during the molding of this nib.

Tubular extension 22 of the cover 16 acts as the pen stylus, itspassageway 24 being longitudinally aligned with passageway 26 in thewriting nib 14.

As the stylus bottom has a more or less rectangular transverse section,the passageway 24 and the stylus opening 28, are each circular asindicated in FIG. 5. In another embodiment, FIG. 6, both passageway 24and opening 28' are likewise rectangularly sectioned.

In practice, the cover 16 is made of sheet metal, such as steel orstainless steel. It should be hardened, at least in part coextensivewith the pen stylus portion 22.

Cover 16 may be alternately fashioned of a malleable and easily formedmaterial and thereafter plated with nickel, chrome or other hard alloy.In either event, cover :16 is a deep stress product. In the firstinstance of its fabrication, its bottom 30 is closed, having a wallthickness as indicated by the phantom lines (FIG. 2). Bottom 30 isconnected with the side wall 34 of the stylus, forming outside radia 36.In the next phase of production, hole 28 is bored in bottom 30.

As shown in FIG. 4, a section of cover 16 is oval shaped with the widestmeasurements being at side wall parts 38, a cross-section of the coverover these side walls 3 8 being shown in FIG. 3.

The present reinforced cover construction enables ink passage 26 and inkchamber 40 to be positioned in the molded writing nib 14 with less thanminimal cost of pen production, considering the prior art. Furthermore,there is provided herein an ideal guide for the cleaning wire 42 fromthe upper ink chamber 44 into the ink chamber 40, via the inclined innerreservoir wall 46 and from the ink chamber 40 via the inclined innerwall 48 into ink passage 26, which guide prevents damage of the cleaningwire 42, during re-assembly and forced reciprocation of this wire incleaning.

I claim:

1. In stylographic pens having integral reservoir, connecting capillarynib and reciprocal cleaning wire for the nib, the improvementcomprising:

reinforcing nib jacket, exteriorly set about the nib,

the said jacket defining a capillary ink stylus at its terminal end.

2. The improvement of claim 1 in which the jacket consists of a deepstress material, said jacket having an end which is in extenso of thecapillary nib and in alignment therewith.

References Cited UNITED STATES PATENTS 280,630 7/1893 Kerner 4012603,292,595 12/1966 Young 40l--259 3,306,267 2/ 1967 Matsumoto 401258LAWRENCE CHARLES, Primary Examiner US. Cl. X.R. 401 265

